"All the compressed file extensions end on "Z". So the p2z is the compressed version." Agreed, Steven. But pz2->p2z is the exception to the rule that the compressed version has the same 1st 2 letters but with the 3rd letter replaced by a "z". Why? 'cos it would conflict with the scene files (which ALSO start with "pz"). That's what I meant about "not thinking ahead".... Eiether the pose file or the scene file should have had its extension changed as soon as compression was introduced. Mind you, it was probably too late by then (for backward compatibility reasons). Ah, well, I've already got used to it (and anyway I never save in compressed format; I often want to edit the files, and also, if a compressed file ever gets corrupted there's not a hope in h*ll of correcting it in a text editor, whilst with an uncompressed file you at least have a slight possibility). Cheers, Diolma